PROBLEM TO BE SOLVED: To provide a tape agent for psoriasis treatment which is excellent in stability of active vitamin D3 or an analog thereof and in anchoring and prevents sinking of an adhesive layer into a support during storage of the tape agent even when the adhesive layer is made thinner.SOLUTION: A tape agent for psoriasis treatment comprises a support and an adhesive layer, where the support is woven fabric the amount of residual solvent in the adhesive layer is 300 ppm or less the polybutene content in the adhesive layer is 10 wt.% or more based on the total weight of the adhesive layer and the total content of the polybutene and a tackifying resin is 30 wt.% or more based on the total weight of the adhesive layer. Consequently, the tape agent for psoriasis treatment is excellent in stability of active vitamin D3 or an analog thereof and in anchoring, and prevents sinking of the adhesive layer into the support, which typically occurs during storage of tape agent and has been a problem in thinning an adhesive layer of tape agent.COPYRIGHT: (C)2016,JPO&INPIT【課題】粘着剤層を薄層化した際においても、テープ剤保存時に発生する支持体への粘着剤層の沈み込みを防止しつつ、投錨性に優れ、活性型ビタミンD3またはその類縁物質の安定性に優れた乾癬治療用テープ剤を提供すること。【解決手段】テープ剤の支持体が織布であり、粘着剤層中の残留溶媒量が300ppm以下であり、粘着剤層中のポリブテン配合量が粘着剤層総重量の10重量%以上であり、かつ、ポリブテンおよび粘着付与樹脂の総配合量が粘着剤層総重量の30重量%以上であることで、テープ剤の粘着剤層を薄層化した際に問題となる、テープ剤保存時に発生する支持体への粘着剤層の沈み込みを防止しつつ、投錨性および活性型ビタミンD3またはその類縁物質の安定性に優れた乾癬治療用テープ剤である。【選択図】なし
